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Last activity 2018-01-18 13:41:53 +0200 by gkovelman_tap

DFU, caching & iOS

Hi,

I know that this is a known issue, but I'm seeing caching issues often with iOS. I'm using S132 v5.0.0, SDK 14.0 against custom application with iOS DFU SDK and often I'm seeing ... (more)

29
views
no
votes
1
answer
Last activity 2018-01-17 21:48:28 +0200 by jwillner1958

BLE advertisement period / phase

I would like to synchronize my warning lamps with the advertisment of a master device.

The master is the advertiser as peripheral device. once every second.

The slaves are scanner as central device. When they detect the advertisment they synchronize ... (more)

33
views
no
votes
2
answers
Last activity 2018-01-16 16:20:03 +0200 by catelain

NRF_POWER utilisation make reboot the ship?

Hi,

I try to enable the ram retention function. (Bank 4) So i used the POWER structure

NRF_POWER->RAM[4].POWERSET |= (POWER_RAM_POWER_S0POWER_On << POWER_RAM_POWER_S0POWER_Pos); NRF_POWER->RAM[4].POWERSET |= (POWER_RAM_POWER_S0RETENTION_On << POWER_RAM_POWER_S0RETENTION_Pos);

This instructions make constantly reset the board. Did you have a ... (more)

58
views
1
vote
1
answer
Last activity 2018-01-16 15:39:52 +0200 by Muhammet YILDIZ

How to Firmware Update Over BLE

I am using keil 5, softdevice 132, sdk NRF_SD_BLE_API_VERSION=5, nRF52832.

I am trying to work with firmware update over ble.

In the example folder, there is an example called "buttonless dfu".

I am trying to implement it. But cant ... (more)

312
views
1
vote
2
answers
Last activity 2018-01-16 08:08:03 +0200 by Bjørn Spockeli flag of Norway

nrf52 Bootloader_secure_ble

Hello, I am using nrf52 with sdk 13.0.0. Bootloader_secure_ble gives error while compiling. What should I do ?

        Error[Lt009]: Inconsistent wchar_t size 
        micro_ecc_lib_uECC.c.o(micro_ecc_lib_nrf52.a) has wchar_t size 16 bits 
        app_error_weak.o and 66 other objects ...
(more)

102
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no
votes
1
answer
Last activity 2018-01-15 16:23:12 +0100 by Martin Børs-Lind flag of Norway

GPIO pin reading wrong value

There seems to be an issue when reading GPIO pins returning false readings. I am using two pins for I2C communication, 26 and 27, I am configuring them with the required configuration for using I2C and then setting them high ... (more)

14
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no
votes
no
answers
Last activity 2018-01-13 15:29:27 +0100 by Jerod

Problems discovering services with BlackBerry Priv

We have field reports of BlackBerry Priv not being able to "connect" to our nRF52 based hardware.

BlackBerry Priv is: https://www.gsmarena.com/blackberry_p... (Runs Android 6.0.1 with lastest/final patch in Oct '17)

Upon closer inspection ... (more)

46
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no
votes
1
answer
Last activity 2018-01-12 16:03:15 +0200 by Torbjørn Øvrebekk

Timer interrupt priority and BLE connection

Hi all,

My configuration:

  • nrf52832 microcontroller
  • Softdevice S132 V4.0.2
  • Nordic SDK 13.0

I'm using an "app_timer" in repeated mode with 10Hz frequency.

#define M_10HZ_TIMER_VALUE  APP_TIMER_TICKS(100) /* 10Hz  = 100ms */

APP_TIMER_DEF(m_10Hz_timer_id);   

app_timer_create(&m_10Hz_timer_id, APP_TIMER_MODE_REPEATED, m_10Hz_timer_handler);

app_timer_start(m_10Hz_timer_id ...
(more)

47
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1
vote
1
answer
Last activity 2018-01-12 12:49:10 +0200 by Bjørn Kvaale

New application doesn't run after secure DFU process reaches 100%

Hi to everyone!

I'm following this guide to learn how to use secure DFU on a nRF52832DK board.

All steps have been done successfully, or I think so, until I reach the D4 step where the new program has ... (more)

16
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no
votes
1
answer
Last activity 2018-01-10 10:54:32 +0100 by Võ Thanh Hiếu flag of Viet Nam

GPIOTE toggling error [closed]

I am working with the nRF52 DK, using SDK v14.2.0 and SoftDevice S132.

After removing all BSP functions from the BLE UART example, I am setting up LED1 and LED2 of the nRF52 DK as followed

#define LED1_PIN_NUMBER ...
(more)

251
views
no
votes
4
answers
Last activity 2018-01-05 16:50:05 +0200 by Brad Hanson

Why does Nordic_Uart sample do an illegal response for iPhone X?

I am trying to communicate with iPhone X using Nordic_Uart sample project in SDK 14.2. And I check the Protocols between nRF52DK and iPhone X by using Ellisys Bluetooth Tracker, I found an error on LLCP Length Response. LL_LENGTH_RSP ... (more)

83
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1
vote
1
answer
Last activity 2018-01-05 12:38:16 +0200 by Jørgen Holmefjord flag of Norway

UARTE receive timeout (RXTO)

Hello,

I have a question regarding the nrf uart driver. The RXTO event is never triggered even though the Interrupt itself is enabled (and the line is idle after a packet, so the timeout should happen unless it's set ... (more)

59
views
no
votes
1
answer
Last activity 2018-01-04 13:13:07 +0100 by Stian flag of Norway

Proper method to disconnect (and connect) an NRF52 input (configured via GPIOTE)

The NRF52 product spec suggests: "The input buffer of a GPIO pin can be disconnected from the pin to enable power savings"

I've found that gpio.h provides the function: nrf_gpio_input_disconnect(pin)

However this function doesn't appear to ... (more)

61
views
1
vote
no
answers
Last activity 2017-12-27 15:50:11 +0200 by vishal

Is it ok doubler circuit for powering nRF52832 custom board

Hello Everyone,

I have developed my application using BLE for connect android mobile. I have design complete PCB using your reference design. But i have littele confused in power supply schematic because i have use MCP1640 doubler IC, and use ... (more)

66
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no
votes
1
answer
Last activity 2017-12-15 06:32:19 +0100 by asdf

nRF52832 connection problem with some android device

Hi, I'm using nRF52832 with sdk 13.1.0(softdevice 4.0.2). I had trouble to connect nRF52832 in some android smart device.When I restart Bluetooth,Sometimes there are problems connecting(GATT ERROR 133).Then never connected ... (more)

33
views
2
votes
2
answers
Last activity 2017-12-14 22:30:08 +0100 by Aaron

DFU works with windows nrf connect but fails with mobile apps

With the mobile apps via logging I don't see the device transitioning into the bootloader state.

Anyone seen anything like that.

46
views
no
votes
1
answer
Last activity 2017-12-14 09:51:42 +0100 by Martin Børs-Lind flag of Norway

sd_ble_cfg_set returns NRF_ERROR_INVALID_PARAM for DEFAULT tag?

I just spent 2 hours chasing BLE bug after upgrading from s132 v3 => v4.0.2

I added a call

// Configure the maximum ATT MTU.
memset(&ble_cfg, 0x00, sizeof(ble_cfg));
ble_cfg.conn_cfg.conn_cfg_tag                 = BLE_CONN_CFG_TAG_DEFAULT;
ble_cfg.conn_cfg.params.gatt_conn_cfg.att_mtu = NRF_BLE_GATT_MAX_MTU_SIZE ...
(more)

57
views
no
votes
1
answer
Last activity 2017-12-13 11:15:06 +0200 by Sigurd flag of Norway

nrf52832 SDK13 PWM cant change duty cycle at first period

hello ,everyone

I was confused by a PWM problem for a long time , on nrf52832 SDK13 ,i wanna change the PWM duty cycle every period ,but now i find can not change it at first period but is correct operate ... (more)

66
views
2
votes
1
answer
Last activity 2017-12-12 12:49:00 +0200 by Torbjørn Øvrebekk

nRF52832 Advertising Energy Profile

This is the Energy Profile that is shown for the nRF82832 and I am wondering about the RX/ switch parts. I assume these RX phases are for receiving scan requests? What happens if I set advertising mode to ADV_DIRECT_IND or ... (more)

79
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no
votes
no
answers
Last activity 2017-12-12 01:41:54 +0100 by ALE

AES CCM encryption by S132 timeslot API

Hi,

I have posted the same question in the following URL. https://devzone.nordicsemi.com/questi...

It will be very helpful if you tell me how to get a correct MIC result by AES CCM mode encryption of nRF52832.

I ... (more)

289
views
4
votes
1
answer
Last activity 2017-12-08 10:04:40 +0200 by Martin Børs-Lind flag of Norway

Samsung Galaxy S8 cannot find nRF52 after Directed Advertisement

We have a discovery issue that seemingly only happens with the Samsung Galaxy S8.

We are using the nRF52832 with SoftDevice S132 v2.0.1, and do directed advertisements to the last connected peer when disconnecting. We do not use ... (more)

64
views
1
vote
1
answer
Last activity 2017-12-06 17:44:57 +0100 by Petter Myhre flag of Norway

Why is S132 BLE GATT Notification bandwidth spec'd as 16kbps not 24kbps?

The last table on the S132 Specification BLE "data throughput" web page lists the maximum GATT Notification send/receive rates as 16kbps when using an event length of 2.5ms and C.I. of 20mS.

A quick calculation suggests that ... (more)

89
views
2
votes
2
answers
Last activity 2017-12-06 16:17:39 +0100 by Mostafa Berg

peripheral displayed as Accessory on iOS

Hi,

has anyone observed a behavior where the peripheral would be displayed as Accessory on iOS? I'm seeing this occasionally with my S132 v5.0.0 peripheral, but can't seem to reproduce it. Not sure if it happens ... (more)

64
views
no
votes
1
answer
Last activity 2017-12-06 13:10:35 +0100 by Petter Myhre flag of Norway

Radio Timeslot API s132 v5.0.0

Hi, I need to use the radio timeslot api in my application. I'm using nrf52 ,SDK 14.0.0 and softdevice version 5.0.0 . I've gone through the tutorial for setting up timeslot api. But was not ... (more)

64
views
no
votes
no
answers
Last activity 2017-12-05 10:48:09 +0200 by micele flag of China

SDK11 132 ble_app_uart domo add dfu no work

Hi everybody : SDK11 132 ble_app_uart domo add dfu no work . This is my code . I don't know how to set RAM.This is my set.image description

112
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1
vote
2
answers
Last activity 2017-12-04 08:36:52 +0200 by Rahul

dumping code in NRF52832

hiii friends,

i have developed new board using nRF52832 xxAA. i am dumping code in this using nrf52 DK and it is working fine but when i am removing power from this and reconnect power it is not working. but ... (more)

29
views
1
vote
1
answer
Last activity 2017-11-29 09:44:01 +0100 by jwcheon

nRF52840 & SDK14.1 -> Can BLE be used in MSC Example?

Hi,

My development environment is Keil, and I am using nRF52840 & S140 (5.0.0-2) & SDK14.1.

Can I use BLE with the USB_MSC example?

Thank you.

25
views
1
vote
1
answer
Last activity 2017-11-29 04:26:36 +0100 by RK flag of Singapore

On target NRF52832 is a 32k crystal necessary in order to run a soft device?

On target NRF52832 is a 32k crystal necessary in order to run a soft device?

28
views
1
vote
1
answer
Last activity 2017-11-29 02:13:26 +0100 by RK flag of Singapore

Android phone keeps broadcasting even when connected

I have a server running on my Android phone. I looked at the service UUID encoded in the advert packet using and Wire-shark and confirmed my app is broadcasting packets.

However, when the app is connected to an NRF central ... (more)

54
views
2
votes
no
answers
Last activity 2017-11-28 22:21:12 +0100 by MichaelNordicUser

App crashes in ble_stack_init()

I am trying to execute code that broadcasts (uses the Soft Device Ble stack) on target nrf52832 boards connected to the PCA10040.

I am successful uploading a program (that does not use Soft Device) and have it execute on three ... (more)

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  • Resolved questions: 11553
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